Diamond



FIG. 1 is a perspective view of the bottom of the diamond showing our new design;

FIG. 2 is a perspective view of the top thereof;

FIG. 3 is a front view and a rear view thereof, the front and rear views being identical;

FIG. 4 is a bottom view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a left side and a right side view thereof, the left side and right side views being identical. 

CLAIM The ornamental design for a diamond, as shown and described. 